T. Colin Campbell is an American biochemist who specializes in the effect of nutrition on long-term health. He is the Jacob Gould Schurman Professor Emeritus of Nutritional Biochemistry at Cornell University.

Campbell has become known for his advocacy of a low-fat, whole foods, vegan (plant-based) diet. He is the author of over 300 research papers on the subject, and two books, Whole (2013), and The China Study (2005, co-authored with his son), which became one of America’s best-selling books about nutrition.^[1] Campbell featured in the 2011 American documentary, Forks Over Knives.